org.apache.iotdb.tsfile.file.metadata.statistics

Class TimeStatistics

java.lang.Object

org.apache.iotdb.tsfile.file.metadata.statistics.Statistics<Long>

org.apache.iotdb.tsfile.file.metadata.statistics.TimeStatistics

public class TimeStatistics
extends Statistics<Long>

Field Summary

Fields inherited from class org.apache.iotdb.tsfile.file.metadata.statistics.Statistics

isEmpty

Constructor Summary

Constructors

Constructor and Description
TimeStatistics()

Method Summary

Modifier and Type	Method and Description
long	calculateRamSize()
void	deserialize(ByteBuffer byteBuffer)
void	deserialize(InputStream inputStream) read data from the inputStream.
Long	getFirstValue()
Long	getLastValue()
Long	getMaxValue()
Long	getMinValue()
int	getStatsSize() The output of this method should be identical to the method "serializeStats(OutputStream outputStream)"
double	getSumDoubleValue()
long	getSumLongValue()
TSDataType	getType()
protected void	mergeStatisticsValue(Statistics<Long> stats)
int	serializeStats(OutputStream outputStream)
void	update(long time)
void	update(long[] time, int batchSize)
void	updateStats(long minValue, long maxValue) This method with two parameters is only used by unsequence which updates/inserts/deletes timestamp.

Methods inherited from class org.apache.iotdb.tsfile.file.metadata.statistics.Statistics

deserialize, deserialize, equals, getCount, getEndTime, getSerializedSize, getSizeByType, getStartTime, getStatsByType, hashCode, isEmpty, mergeStatistics, serialize, setCount, setEmpty, setEndTime, setStartTime, toString, update, update, update, update, update, update, update, update, update, update, update, update

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TimeStatistics

public TimeStatistics()

Method Detail

getType

public TSDataType getType()

Specified by:

getType in class Statistics<Long>

getStatsSize

public int getStatsSize()

The output of this method should be identical to the method "serializeStats(OutputStream outputStream)"

Specified by:

getStatsSize in class Statistics<Long>

update

public void update(long time)

Overrides:

update in class Statistics<Long>

update

public void update(long[] time,
                   int batchSize)

Overrides:

update in class Statistics<Long>

getMinValue

public Long getMinValue()

Specified by:

getMinValue in class Statistics<Long>

getMaxValue

public Long getMaxValue()

Specified by:

getMaxValue in class Statistics<Long>

getFirstValue

public Long getFirstValue()

Specified by:

getFirstValue in class Statistics<Long>

getLastValue

public Long getLastValue()

Specified by:

getLastValue in class Statistics<Long>

getSumDoubleValue

public double getSumDoubleValue()

Specified by:

getSumDoubleValue in class Statistics<Long>

getSumLongValue

public long getSumLongValue()

Specified by:

getSumLongValue in class Statistics<Long>

updateStats

public void updateStats(long minValue,
                        long maxValue)

Description copied from class: Statistics

This method with two parameters is only used by unsequence which updates/inserts/deletes timestamp.

Overrides:

updateStats in class Statistics<Long>

Parameters:

minValue - min timestamp

maxValue - max timestamp

calculateRamSize

public long calculateRamSize()

Specified by:

calculateRamSize in class Statistics<Long>

mergeStatisticsValue

protected void mergeStatisticsValue(Statistics<Long> stats)

Specified by:

mergeStatisticsValue in class Statistics<Long>

serializeStats

public int serializeStats(OutputStream outputStream)

deserialize

public void deserialize(InputStream inputStream)
                 throws IOException

Description copied from class: Statistics

read data from the inputStream.

Specified by:

deserialize in class Statistics<Long>

Throws:

IOException

deserialize

public void deserialize(ByteBuffer byteBuffer)

Specified by:

deserialize in class Statistics<Long>